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Thruster88

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Everything posted by Thruster88

  1. Thruster88
    You will need a condition report done by a L2 Maintenance person. Don't buy until the condition report is accepted by RAAus. Sometimes you have to ask why the aircraft became un registered. Seek advice from experienced people not involved with the aircraft.
  2. Thruster88
    One should consider the loss of resale value compared to the same aircraft with a Rotax, $4k won't cut it.
  3. Thruster88
    I believe jabiru factory installed pistons with gudgeon pin offset back to front compared to normal automotive practice. They must have had a reason for this.
  4. Thruster88
    Check that the fuel pump vent/drain hose is not blocked with a wasp nest.
  5. Thruster88
    If the fuel pressure is normal with boost pump on and low with engine pump only then yes the mechanical engine pump is faulty. This happened to my RV6, the engine still ran fine with just the engine pump but the pressure was very low, new pump pressure normal.
  6. Thruster88
    I think the student pilot in the Dan video had done the 3? hours required for his PPL when he crashed. He was cross country solo standard. This would make a good video for RAAus student pilots as to why VMC must be avoided. I like Dan's videos because they show the human impact that these avoidable "accidents " have.
  7. Thruster88
    There are always backup systems on certified IFR aircraft.
  8. Thruster88
    University New South Wales has acquired 6 new Diamond DA40xlt aircraft for their fleet. Interesting that they went with the Lycoming IO-360 that some would call a dinosaur or lycosaurous rather than the FADEC jet A burning turbo diesel of the DA40Ng model. Cutting-edge planes take UNSW to new heights WWW.UNSW.EDU.AU UNSW School of Aviation has acquired six new state-of-the-art aeroplanes, enhancing the training experience for Australia's next generation of pilots.
  9. Thruster88
    Having read the coroners report it appears to me that the pilot after flying some 40 km down the Keiwa valley either inadvertently or intentionally entered Instrument Meterological Conditions after turning east over the high terrain. The jabiru 230 was then climbed to an altitude of 8697 feet before loss of control. Cloud top were forecast to be around 10,000 The report states the aircraft was not equipped for instrument flight which would be technically true. Some form of Artificial Horizon may have been fitted, a Dynon? Was it a case of, have Dynon I got this.
  10. Thruster88
    Please explain how aircraft in Australia with numbers on the side are not regulated.
  11. Thruster88
    Reading marko's initial post, he flew 25 hours since the rebuild but didn't say what if any oil consumption was.
  12. Thruster88
    Oil consumption would have to be very high to cause plug fouling. A Rotax 582 can eat 400ml of oil per hour no problem. Perhaps the real problem is a weak ignition, just a thought.
  13. Thruster88
    Would be interesting to see how the 912iS performs at altitude. What aircraft has that engine with a constant speed prop?
  14. Thruster88
    I looked up the pipistrel virus 121, nice performance chart in section 5.9. Ignore the KTAS, the percentage of power and fuel flow at 2,4,6,8,10,12 thousand feet is what you need. Make your own palm sized card with that data for reference while flying at altitude. Interesting how the 55% power fuel flow increases fairly dramatically as altitude increases. Carb not totally compensating, rich mixture? And engine speed (increased friction losses) to get required power at altitude.
  15. Thruster88
    No however without a performance chart like the one I posted above for the carburetor 180hp lycoming it is not possible to give advice how you should operate your aircraft with its constant speed? Or in-flight adjustable? Propeller at any given altitude. If you have an accurate fuel flow that could guide you while avoiding any low RPM/high manifold pressure limits that Rotax has published.
  16. Thruster88
    Not a good day for white shorts
  17. Thruster88
    Metres for altitude, yes of course, we wouldn't want the Chinese or Russians to feel left out.
  18. Thruster88
    AI. Would fool most .
  19. Thruster88
    I always like total control and help that don't get tired with wing removal. At work we have a platform with two screw Jack's for Cessnas or a height adjustable hospital bed for low wings. Even light wings get heavy very quickly.
  20. Thruster88
    I have always wondered about this. We know with Lycons above 7500 feet we usually have the throttle wide open (FT) as the chart I posted above shows. The Rotax 912ULS performance chart at altitude shows the 100hp engine only making about 38 hp at 7500 feet when it should be capable of approximately 75hp at that altitude. What is going on in that carburetor??? Is the chart wrong?
  21. Thruster88
    A fast plane with 2000 fpm climb rate gets up out of the hot air quickly, love the RV.
  22. Thruster88
    Skippy, your thinking is wrong, the propeller control only adjusts engine rpm, not manifold pressure. The throttle only adjusts manifold pressure, not rpm in a constant speed propeller system. There are exceptions to this outside normal climb, cruise, descent power, throttle will reduce rpm during landing etc. It would be nice if Rotax published a comprehensive chart like the one above for the 912, showing 75%, 65%, 55% power and how that can be achieved for a given altitude if a constant speed propeller is used.
  23. Thruster88
    You certainly can reduce the rpm to 5200 WOT using the prop control, however this will be a much higher power setting than the fixed propeller doing 5200. The difference will be the amount of manifold pressure which is controlled with throttle. This power chart for a lycoming shows multiple combinations of manifold pressure and rpm to get the same power and hence fuel flow. 3 fuel/power settings are shown in the chart. All piston engines behave the same way.
  24. Thruster88
    Thrusters have a 4inch main tube, no doublers but it is well braced .
  25. Thruster88
    I agree you can get 14 lph but don't call it 75% power. The rotax charts that Blue posted show the fuel consumption at 75% which rotax say is only 68hp, weird maths if you ask me but anyway that is 18.5lph. The altitude chart is very informative.
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